Effective Length of a Receiving Antenna in a Streaming Plasma
1.
SYSNO ASEP
0043015
Druh ASEP
J - Článek v odborném periodiku
Zařazení RIV
J - Článek v odborném periodiku
Poddruh J
Ostatní články
Název
Effective Length of a Receiving Antenna in a Streaming Plasma
Překlad názvu
Efektivní délka přijímací antény v proudícím plazmatu
Tvůrce(i)
Chugunov, Yu. V. (RU) Fiala, Vladimír (UFA-U)
Zdroj.dok.
IEEE Transactions on Antennas and Propagation
- ISSN 0018-926X
Roč. 54, č. 10 (2006), s. 2750-2756
Poč.str.
7 s.
Jazyk dok.
eng - angličtina
Země vyd.
US - Spojené státy americké
Klíč. slova
receiving antenna ; plasma waves ; resonance
Vědní obor RIV
BL - Fyzika plazmatu a výboje v plynech
CEP
IAA301120601 GA AV ČR - Akademie věd
CEZ
AV0Z30420517 - UFA-U, BC-A (2005-2011)
Anotace
The root-mean-square (r.m.s) voltage induced on a receiving dipole antenna by incident potential waves in a streaming otherwise isotropic plasma in the resonance frequency band is calculated. The open-circuit voltage on antenna terminals is the product of the wave electric field strength at the receiving point and the effective length of the receiving antenna Leff. The effective length differs substantially from that in a non-streaming plasma for waves propagating downstream at frequencies close to the plasma frequency. The case of stream velocity lower than the electron thermal velocity is considered, which is of interest for wave measurements in the solar wind. We discuss some implications for relevant experiments in space plasmas, namely the appearance of narrowband lines in the spectra around local plasma frequency observed in the solar wind. The possible exaggeration of plasma wave amplitudes in conventional interpretations of measurements is pointed out.
